Article of footwear



FIG. 1 is a top perspective view of an article of footwear, showing the claimed design;

FIG. 2 is an outer side view of the article of footwear shown in FIG. 1;

FIG. 3 is an inner side view of the article of footwear shown in FIG. 1;

FIG. 4 is a top view of the article of footwear shown in FIG. 1;

FIG. 5 is a rear view of the article of footwear shown in FIG. 1;

FIG. 6 is a front view of the article of footwear shown in FIG. 1; and,

FIG. 7 is a bottom view of the article of footwear shown in FIG. 1.

The broken lines shown in the figures represent portions of the article of footwear that form no part of the claimed design. 

The ornamental design for an article of footwear, as shown and described. 